How to write a QList into a binary file?

[eekhoorn12]

To test it i made the public.

[Lawand]

That error you're getting doesn't necessarily mean what you think it means, sometimes GCC errors are ambiguous.

I copied all the code as-is into a project in my PC then added the two line I told you about (the declarations) and it turend out that you should un-hint the "#include <QDataStream>" and the error will go away...

[eekhoorn12]

I tried it and it works. Thanks everything works now.

[Lawand]

It's good to know that